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Print strlen benchmark output in json 

Allow reading the benchmark using the compare_strings.py script.
This commit is contained in:
Siddhesh Poyarekar 2018-08-16 13:59:13 +05:30
parent 7793ad7a2c
commit 953a5a4a59
2 changed files with 43 additions and 16 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
2018-08-16 Siddhesh Poyarekar <siddhesh@sourceware.org>
* benchtests/bench-strlen.c: Print performance numbers in json.
2018-08-16 Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>
* sysdeps/powerpc/powerpc64/multiarch/Makefile

55
benchtests/bench-strlen.c
View File

@ -35,6 +35,8 @@
# define MAX_CHAR WCHAR_MAX
#endif
#include "json-lib.h"
typedef size_t (*proto_t) (const CHAR *);
size_t
@ -60,7 +62,7 @@ IMPL (STRLEN, 1)
static void
do_one_test (impl_t *impl, const CHAR *s, size_t exp_len)
do_one_test (json_ctx_t *json_ctx, impl_t *impl, const CHAR *s, size_t exp_len)
{
size_t len = CALL (impl, s), i, iters = INNER_LOOP_ITERS;
timing_t start, stop, cur;
@ -82,11 +84,11 @@ do_one_test (impl_t *impl, const CHAR *s, size_t exp_len)
TIMING_DIFF (cur, start, stop);
TIMING_PRINT_MEAN ((double) cur, (double) iters);
json_element_double (json_ctx, (double) cur / (double) iters);
}
static void
do_test (size_t align, size_t len)
do_test (json_ctx_t *json_ctx, size_t align, size_t len)
{
size_t i;
@ -100,42 +102,63 @@ do_test (size_t align, size_t len)
buf[align + i] = 1 + 11111 * i % MAX_CHAR;
buf[align + len] = 0;
printf ("Length %4zd, alignment %2zd:", len, align);
json_element_object_begin (json_ctx);
json_attr_uint (json_ctx, "length", len);
json_attr_uint (json_ctx, "alignment", align);
json_array_begin (json_ctx, "timings");
FOR_EACH_IMPL (impl, 0)
do_one_test (impl, (CHAR *) (buf + align), len);
do_one_test (json_ctx, impl, (CHAR *) (buf + align), len);
putchar ('\n');
json_array_end (json_ctx);
json_element_object_end (json_ctx);
}
int
test_main (void)
{
json_ctx_t json_ctx;
size_t i;
test_init ();
printf ("%20s", "");
FOR_EACH_IMPL (impl, 0)
printf ("\t%s", impl->name);
putchar ('\n');
json_init (&json_ctx, 0, stdout);
json_document_begin (&json_ctx);
json_attr_string (&json_ctx, "timing_type", TIMING_TYPE);
json_attr_object_begin (&json_ctx, "functions");
json_attr_object_begin (&json_ctx, TEST_NAME);
json_attr_string (&json_ctx, "bench-variant", "");
json_array_begin (&json_ctx, "ifuncs");
FOR_EACH_IMPL (impl, 0)
json_element_string (&json_ctx, impl->name);
json_array_end (&json_ctx);
json_array_begin (&json_ctx, "results");
/* Checking with only 4 * N alignments for wcslen, other alignments are wrong for wchar_t type arrays*/
for (i = 1; i < 8; ++i)
{
do_test (sizeof(CHAR) * i, i);
do_test (0, i);
do_test (&json_ctx, sizeof(CHAR) * i, i);
do_test (&json_ctx, 0, i);
}
for (i = 2; i <= 12; ++i)
{
do_test (0, 1 << i);
do_test (sizeof(CHAR) * 7, 1 << i);
do_test (sizeof(CHAR) * i, 1 << i);
do_test (sizeof(CHAR) * i, (size_t)((1 << i) / 1.5));
do_test (&json_ctx, 0, 1 << i);
do_test (&json_ctx, sizeof(CHAR) * 7, 1 << i);
do_test (&json_ctx, sizeof(CHAR) * i, 1 << i);
do_test (&json_ctx, sizeof(CHAR) * i, (size_t)((1 << i) / 1.5));
}
json_array_end (&json_ctx);
json_attr_object_end (&json_ctx);
json_attr_object_end (&json_ctx);
json_document_end (&json_ctx);
return ret;
}